Ah, twisty ole’ twist rates. They’re the bane of so many gun forums, the source of debate, conjecture, expletives and troll-ish comments. Unfortunately for you, the AR 15 builder and shooter, this topic cannot be ignored. Twist rate is one of the biggest variables in the black rifle game when it comes to how you’ll build your rifle (or pistol) and how accurate (or side-of-barn-shot-group inaccurate) it’ll be. What’s in a Twist Rate? What is twist rate? Let’s break it down: Twist rate is the number of times your barrel’s rifling’s lands and grooves make one full rotation, measured in...